DE102010031037B4 - Vibration damper with frequency-selective damping force - Google Patents
Vibration damper with frequency-selective damping force Download PDFInfo
- Publication number
- DE102010031037B4 DE102010031037B4 DE201010031037 DE102010031037A DE102010031037B4 DE 102010031037 B4 DE102010031037 B4 DE 102010031037B4 DE 201010031037 DE201010031037 DE 201010031037 DE 102010031037 A DE102010031037 A DE 102010031037A DE 102010031037 B4 DE102010031037 B4 DE 102010031037B4
- Authority
- DE
- Germany
- Prior art keywords
- piston rod
- valves
- vibration damper
- piston
- bypass connection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/50—Special means providing automatic damping adjustment, i.e. self-adjustment of damping by particular sliding movements of a valve element, other than flexions or displacement of valve discs; Special means providing self-adjustment of spring characteristics
- F16F9/512—Means responsive to load action, i.e. static load on the damper or dynamic fluid pressure changes in the damper, e.g. due to changes in velocity
- F16F9/5126—Piston, or piston-like valve elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F2228/00—Functional characteristics, e.g. variability, frequency-dependence
- F16F2228/04—Frequency effects
Abstract
Schwingungsdämpfer mit frequenzselektiver Dämpfkraft, umfassend einen Zylinder, in dem ein Kolben an einer Kolbenstange den mit Dämpfmedium gefüllten Zylinder in eines kolbenstangenseitigen und einen kolbenstangenfernen Arbeitsraum unterteilt, wobei zwischen den beiden Arbeitsräumen eine Bypassverbindung zu dem Kolben besteht, die zumindest teilweise in der Kolbenstange ausgeführt ist, wobei der Durchfluss in der Bypassverbindung mittels zweier gegensinnig wirksamer Ventile gesteuert wird, die vom Druck in einem Arbeitsraum auf eine Stirnfläche gegen die Kraft einer Feder in eine Schließposition bewegbar sind, wobei die Ventile als Sitzventile ausgeführt und innerhalb einer hohlen Kolbenstange angeordnet sind.Vibration damper with frequency-selective damping force, comprising a cylinder in which a piston on a piston rod divides the cylinder filled with damping medium into a working chamber on the piston rod side and a working chamber remote from the piston rod, with a bypass connection to the piston between the two working chambers, which is at least partially implemented in the piston rod , whereby the flow in the bypass connection is controlled by means of two oppositely acting valves, which can be moved into a closed position by the pressure in a working chamber on an end face against the force of a spring, the valves being designed as seat valves and arranged within a hollow piston rod.
Description
Die Erfindung betrifft einen Schwingungsdämpfer mit frequenzselektiver Dämpfkraft gemäß dem Oberbegriff von Patentanspruch 1.The invention relates to a vibration damper with frequency-selective damping force according to the preamble of patent claim 1.
Die
Diese Lösung verfügt zweifellos über einige vorteilhafte Konstruktionsdetails. Durch das anschraubbare Gehäuse kann als Basis ein Standardschwingungsdämpfer verwendet werden. Die Durchgangsöffnungen mit den Ventilscheiben bieten sehr viele Möglichkeiten zur Einstellung der Dämpfkraftkennlinie.This solution undoubtedly has some advantageous design details. Due to the screw-on housing, a standard vibration damper can be used as a basis. The through holes with the valve discs offer many possibilities for setting the Dämpfkraftkennlinie.
Diesen Vorteilen stehen jedoch die Nachteile gegenüber, dass das zusätzliche Gehäuse bei vorgegebener Zylinderlänge den Hubbereich des Schwingungsdämpfers verkürzt. Des Weiteren sind relativ viele Einzelteile notwendig, die den Herstellungspreis negativ belasten.However, these advantages are offset by the disadvantages that the additional housing shortens the stroke range of the vibration damper for a given cylinder length. Furthermore, a relatively large number of individual parts are necessary, which negatively impact the production price.
Die
Die Aufgabe der vorliegenden Erfindung besteht darin, einen gattungsbildenden Schwingungsdämpfer hinsichtlich der Baulänge zu verbessern und die Teilezahl gering zu halten.The object of the present invention is to improve a generic vibration damper in terms of length and to keep the number of parts low.
Erfindungsgemäß wird die Aufgabe durch die Merkmale des Patentanspruchs 1 gelöst.According to the invention, the object is solved by the features of patent claim 1.
Die Sitzventile fungieren gleichzeitig als Steuerventile für das Einströmen von Dämpfmedium in die Bypassverbindung und als Dämpfventile. Dadurch ergeben sich deutlich einfachere Strömungswege und ein im Vergleich zum aufgezeigten Stand der Technik kleinerer axialer und radialer Bauraumbedarf.The poppet valves also act as control valves for the flow of damping medium into the bypass connection and as damping valves. This results in much simpler flow paths and compared to the cited prior art smaller axial and radial space requirements.
Die Anordnung der Sitzventile innerhalb der hohlen Kolbenstange beeinträchtigt nicht die Hublänge der Kolbenstange. Man muss kein separates Gehäuse anbringen, so dass der Schwingungsdämpfer insgesamt auch noch einen Gewichtsvorteil vorweisen kann. Der Führungszylinder verhindert eine ungewollte Schiefstellung des Ventils.The arrangement of the poppet valves within the hollow piston rod does not affect the stroke length of the piston rod. You do not have to attach a separate housing, so that the vibration damper overall can also show a weight advantage. The guide cylinder prevents unwanted skewing of the valve.
In weiterer vorteilhafter Ausgestaltung ist der Drosselzapfen als ein Konus ausgeführt. Mit dem Konuswinkel steht ein weiterer Einstellparameter für das angestrebte Dämpfkraftverhalten des Schwingungsdämpfers zur Verfügung.In a further advantageous embodiment of the throttle pin is designed as a cone. With the cone angle, a further adjustment parameter for the desired damping force behavior of the vibration damper is available.
Gemäß einem vorteilhaften Unteranspruch ist eine Anschlussöffnung zur Druckbeaufschlagung der Stirnfläche größer ausgeführt als eine Drosselöffnung, zwischen dem Arbeitsraum und der Bypassverbindung. Das Größenverhältnis der Anschlussöffnung zur Drosselöffnung beeinflusst ebenfalls das Dämpfkraftverhalten.According to an advantageous embodiment, a connection opening for pressurizing the end face is made larger than a throttle opening, between the working space and the bypass connection. The size ratio of the connection opening to the throttle opening also influences the damping force behavior.
Dabei weist die Hülse einen Bund auf, auf dem sich die Feder abstützt.In this case, the sleeve has a collar on which the spring is supported.
Es kann sein, dass das Dämpfkraftverhalten des Schwingungsdämpfers von der Einfederungsbewegung richtungsabhängig erfolgen soll. Damit eine eindeutige Einbaulage der verwendeten Bauteile optisch leicht erkennbar ist, ist der Bund in Längsrichtung außermittig an der Hülse ausgeführt.It may be that the damping force behavior of the vibration damper of the compression movement is to be direction-dependent. So that a clear installation position of the components used is visually easily recognizable, the collar is executed in the longitudinal direction off-center on the sleeve.
Anhand der folgenden Figurenbeschreibung soll die Erfindung näher erläutert werden.The invention will be explained in more detail with reference to the following description of the figures.
Die einzige Figur zeigt einen Schwingungsdämpfer
Die Kolbenstange
Die Ventilsitzflächen
Die Betriebsbewegung der Ventile
Jeweils zwischen der Ventilsitzfläche
In Ruheposition der Kolbenstange
Bedingt durch das Flächenverhältnis der Anschlussöffnung
Der Drosselzapfen
Wenn das Ventil
BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 11
- Schwingungsdämpfervibration
- 33
- Zylindercylinder
- 55
- Kolbenstangepiston rod
- 77
- Kolbenpiston
- 99
- kolbenstangenseitiger Arbeitsraumpiston rod side working space
- 1111
- kolbenstangenferner ArbeitsraumKolbenstangenferner workspace
- 13; 1513; 15
- Dämpfventiledamping valves
- 1717
- Stirnflächeface
- 1919
- Längenabschnittlongitudinal section
- 2121
- Bypassverbindungpass connection
- 23; 2523; 25
- Ventilevalves
- 27; 2927; 29
- Federnfeathers
- 31; 3331; 33
- Führungszylinderguide cylinder
- 35; 3735; 37
- VentilsitzflächenValve seats
- 39; 4139; 41
- Drosselzapfenpintle
- 4343
- Hülseshell
- 4545
- BundFederation
- 47; 4947; 49
- Anschlussöffnungport opening
- 51; 5351; 53
- Stirnflächeface
- 5555
- Radialkanalradial channel
- 57; 5957; 59
- Ringflächering surface
- 61; 6361; 63
- Drosselöffnungthrottle opening
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201010031037 DE102010031037B4 (en) | 2010-07-07 | 2010-07-07 | Vibration damper with frequency-selective damping force |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201010031037 DE102010031037B4 (en) | 2010-07-07 | 2010-07-07 | Vibration damper with frequency-selective damping force |
Publications (2)
Publication Number | Publication Date |
---|---|
DE102010031037A1 DE102010031037A1 (en) | 2012-01-12 |
DE102010031037B4 true DE102010031037B4 (en) | 2012-01-19 |
Family
ID=45372581
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE201010031037 Expired - Fee Related DE102010031037B4 (en) | 2010-07-07 | 2010-07-07 | Vibration damper with frequency-selective damping force |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102010031037B4 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3001783A1 (en) * | 2013-02-06 | 2014-08-08 | Peugeot Citroen Automobiles Sa | Oil flow limiter for suspension shock absorber of car, has leakage paths provided between mobile devices and central passage, where section of leakage paths varies with sliding of mobile devices, so as to limit oil flow gradually |
CN110397694A (en) * | 2019-07-22 | 2019-11-01 | 成都九鼎科技(集团)有限公司 | A kind of FCD damper with frequency-selecting effect |
FR3120408B1 (en) * | 2021-03-08 | 2023-01-20 | Psa Automobiles Sa | MOTOR VEHICLE SUSPENSION HYDRAULIC SHOCK ABSORBER |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1323746A (en) * | 1962-03-02 | 1963-04-12 | Advanced hydraulic shock absorber | |
DE2426326A1 (en) * | 1973-05-31 | 1974-12-19 | Showa Mfg | HYDRAULIC SHOCK ABSORBER |
US5248014A (en) * | 1990-10-19 | 1993-09-28 | Tokico Ltd. | Hydraulic shock absorber |
DE4238728A1 (en) * | 1992-11-17 | 1994-05-19 | Stabilus Gmbh | Vibration damper with speed dependent change of damping force - has two work chambers in piston cylinder connected by openings and additionally using by=pass with valve seat and spring. |
JP2002286078A (en) * | 2001-03-23 | 2002-10-03 | Yoshikazu Ogawa | Attenuation force adjustment type hydraulic buffer |
DE10360140A1 (en) * | 2003-12-20 | 2005-07-21 | Daimlerchrysler Ag | Damping device for a motor vehicle |
-
2010
- 2010-07-07 DE DE201010031037 patent/DE102010031037B4/en not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1323746A (en) * | 1962-03-02 | 1963-04-12 | Advanced hydraulic shock absorber | |
DE2426326A1 (en) * | 1973-05-31 | 1974-12-19 | Showa Mfg | HYDRAULIC SHOCK ABSORBER |
US5248014A (en) * | 1990-10-19 | 1993-09-28 | Tokico Ltd. | Hydraulic shock absorber |
DE4238728A1 (en) * | 1992-11-17 | 1994-05-19 | Stabilus Gmbh | Vibration damper with speed dependent change of damping force - has two work chambers in piston cylinder connected by openings and additionally using by=pass with valve seat and spring. |
JP2002286078A (en) * | 2001-03-23 | 2002-10-03 | Yoshikazu Ogawa | Attenuation force adjustment type hydraulic buffer |
DE10360140A1 (en) * | 2003-12-20 | 2005-07-21 | Daimlerchrysler Ag | Damping device for a motor vehicle |
Also Published As
Publication number | Publication date |
---|---|
DE102010031037A1 (en) | 2012-01-12 |
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Legal Events
Date | Code | Title | Description |
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R016 | Response to examination communication | ||
R018 | Grant decision by examination section/examining division | ||
R079 | Amendment of ipc main class |
Free format text: PREVIOUS MAIN CLASS: F16F0009500000 Ipc: F16F0009508000 |
|
R020 | Patent grant now final |
Effective date: 20120420 |
|
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |